Prepare a project story for your next technical interview

Choose a project you can defend

Select one piece of work whose decisions you understand. It can be a learning project or a personal tool; say which it is. Do not imply that a demonstration handled production traffic or served paying customers. The aim is to make your reasoning visible, not to borrow the scale of a company you admire.

Use a five-part explanation

Prepare a short account of the problem, constraints, approach, evidence and next improvement. Explain who needed the result and what a successful outcome meant. For a data pipeline, success might mean that every accepted row can be traced back to an input file. For a website, it might mean that a task works with keyboard navigation.

Bring one failure

Describe a bug or assumption that changed your approach. What evidence exposed it? How did you narrow the cause? What prevents the same problem returning? If the example includes confidential work, obtain permission or replace it with a clearly labelled synthetic reproduction.

Make the evidence easy to inspect

Link to a concise README, a small test and a relevant change. GitHub Skills offers introductory collaboration exercises if you need practice using repositories. A profile is a way to show evidence; it does not guarantee an interview or replace an employer’s hiring requirements.

Rehearse the questions you do not know

Ask a friend to interrupt your explanation with why, what if and how did you check. Practise saying where your knowledge ends. Finish by explaining one trade-off you would revisit with more time or a different constraint. These are preparation exercises, not a claim about a universal hiring process across African employers.

Sources and further reading

GitHub Skills